<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="文件名称" prop="fileName">
        <el-input
          v-model="queryParams.fileName"
          placeholder="请输入文件名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8" v-if="this.$store.getters.adminShow">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['tcsp:fileDown:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['tcsp:fileDown:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['tcsp:fileDown:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['tcsp:fileDown:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="fileDownList" @selection-change="handleSelectionChange" v-if="this.$store.getters.adminShow">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="文件id" align="center" prop="id" />
      <el-table-column label="文件名称" align="center" prop="fileName" />
      <el-table-column label="文件地址" align="center" prop="fileUrl" width="100">
        <template slot-scope="scope">
          <!-- <image-preview :src="scope.row.fileUrl" :width="50" :height="50"/> -->
          <a :href="scope.row.fileUrl" style="color: blue">下载文件</a>
        </template>
      </el-table-column>
      <el-table-column label="创建者" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['tcsp:fileDown:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['tcsp:fileDown:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>


    <el-row v-if="this.$store.getters.userShow">
      <el-col v-for="(info, id) in fileDownList" :key="id" style="margin:10px 0">
        <div>
          <div class="fileLeft">
            <a :href="info.fileUrl">{{info.fileName}}</a>
          </div>
          <div class="fileRight">
            <span>{{info.createTime}}</span>
          </div>
        </div>
      </el-col>
    </el-row>
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改文件下载专区对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="文件名称" prop="fileName" required>
          <el-input v-model="form.fileName" placeholder="请输入文件名称" />
        </el-form-item>
         <el-form-item label="文件上传" prop="fileUrl"  required>
          <el-upload 
          :action="uploadUrl" 
          ref="fileUrl" 
          :headers="headers"
          :on-success="setFileUrl"
          :data="uploadData"
          :limit="1"
          :on-exceed="onExceed"
          :on-remove="onRemove"
          :file-list="fileList"
          >
            <el-button size="small" type="primary" icon="el-icon-upload">点击上传</el-button>
          </el-upload>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listFileDown, getFileDown, delFileDown, addFileDown, updateFileDown } from "@/api/tcsp/file";
import { getToken } from "@/utils/auth";
import store from "@/store";    //用于获取用户角色
export default {
  name: "FileDown",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 文件下载专区表格数据
      fileDownList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        fileName: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        fileName: [
          { required: true, message: "文件名称不能为空", trigger: "blur" }
        ],
      },
      uploadUrl: "http://localhost:8080/minio/upload",
      uploadData: {a: 1,b: 2,c: this.form},
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      fileList: []
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询文件下载专区列表 */
    getList() {
      this.loading = true;
      listFileDown(this.queryParams).then(response => {
        this.fileDownList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        fileName: null,
        fileUrl: null,
        createBy: null,
        createTime: null
      };
      this.fileList=[];
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加文件下载专区";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getFileDown(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改文件下载专区";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateFileDown(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addFileDown(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
              this.reset();
            });
          }
        }
      });
    },
    fileUrlBeforeUpload(){
        console.log(this.form)
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除文件下载专区编号为"' + ids + '"的数据项？').then(function() {
        return delFileDown(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('tcsp/fileDown/export', {
        ...this.queryParams
      }, `fileDown_${new Date().getTime()}.xlsx`)
    },
    setFileUrl (res,file){
        //上传成功
        this.form.fileUrl=file.name
    },
    onExceed() {
        //超出上传个数
        this.$modal.msgWarning("最多只能上传一个文件");
    },
    onRemove(file) {
        //删除文件
        console.log(file.name)
    }
  }
};
</script>
<style scoped>
.fileLeft {
  display: inline-block;
  float: left;
  margin: 0px 50px;
}
.fileLeft:hover {
  color: blue;
}
.fileRight {
  display: inline-block;
  float: right;
  margin: 0px 50px;
}
</style>
